• Masato Tsutsui, Takashige Yamada, Yoshihiro Sugo, Tetsufumi Sato, Toshimasa Akazawa, Nobukazu Sato, Koichi Yamashita, Hironori Ishihara, Tomiei Kazama, and Junzo Takeda.
• Department of Anesthesiology, National Defense Medical College, Tokorozawa 359-0042.
• Masui. 2012 Sep 1;61(9):1011-7.

BackgroundesCCO (estimated continuous cardiac output, Nihon Kohden, esCCO) is a new cardiac output measurement system which uses pulse wave transit time to calculate cardiac output continuously and non-invasively. One of the most commonly used methods to monitor cardiac output is continuous cardiac output CCO (Edwards Lifesciences) which has an accuracy equivalent to that of thermodilution method.MethodsWe compared esCCO to CCO in 67 operating room patients and 128 intensive care unit patients. CCO and esCCO were measured simultaneously in patients with a pulmonary artery catheter inserted after admission to the operating room or intensive care unit.ResultsCCO and esCCO showed a high correlation with a correlation coefficient of 0.84 in 496 total data points, and 95% limits of agreement between these two methods were -2.49 to 2.35 l x min(-1).ConclusionsThis result suggests that esCCO could be used to measure cardiac output accurately and non-invasively in different cases.

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